APA (7th ed.) Citation

Lloyd's Register of Shipping (Firm : 1914- ). (1931). Lloyd's Register of Shipping: Private telegraphic code (6th ed.). Lloyd's Register of Shipping.

Chicago Style (17th ed.) Citation

Lloyd's Register of Shipping (Firm : 1914- ). Lloyd's Register of Shipping: Private Telegraphic Code. 6th ed. London: Lloyd's Register of Shipping, 1931.

MLA (9th ed.) Citation

Lloyd's Register of Shipping (Firm : 1914- ). Lloyd's Register of Shipping: Private Telegraphic Code. 6th ed. Lloyd's Register of Shipping, 1931.